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Finding the Fourth Proportional to 299,328.89, 448,603.44 and 121,628.16

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Solution

The fourth proportional to 299,328.89, 448,603.44 and 121,628.16 is: 182,283.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,328.89 : 448,603.44 = 121,628.16 : x
  2. Step 2: Convert to fraction form
    299,328.89/448,603.44 = 121,628.16/x
  3. Step 3: Cross multiply
    299,328.89x = 448,603.44 × 121,628.16
  4. Step 4: Simplify right side
    299,328.89x = 54,562,810,976.87
  5. Step 5: Solve for x
    x = 54,562,810,976.87/299,328.89
  6. Step 6: Final answer
    x = 182,283.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.